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Finding the Fourth Proportional to 159,363.88, 239,453.82 and 120,289

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Solution

The fourth proportional to 159,363.88, 239,453.82 and 120,289 is: 180,741.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,363.88 : 239,453.82 = 120,289 : x
  2. Step 2: Convert to fraction form
    159,363.88/239,453.82 = 120,289/x
  3. Step 3: Cross multiply
    159,363.88x = 239,453.82 × 120,289
  4. Step 4: Simplify right side
    159,363.88x = 28,803,660,553.98
  5. Step 5: Solve for x
    x = 28,803,660,553.98/159,363.88
  6. Step 6: Final answer
    x = 180,741.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.